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[CELEBORN-2183] Fix client tries to start a connection with excluded workers #3517

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r7raul1984 wants to merge 5 commits into from
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[CELEBORN-2183] Fix client tries to start a connection with excluded workers #3517

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a11ceda
[CELEBORN-2183]Client always tries to start a connection with exclude…
Oct 23, 2025
db03e20
[CELEBORN-2183]fix format problem
Oct 23, 2025
e2d92be
[CELEBORN-2183]Should send bufferStreamEnd first before change locati…
Nov 3, 2025
009eb6a
[CELEBORN-2183]add isexcluded check before change to peer
Nov 3, 2025
2b0e5ba
[CELEBORN-2183]using mvn spotless apply to clean the code
Nov 19, 2025
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6 changes: 4 additions & 2 deletions client/src/main/java/org/apache/celeborn/client/read/CelebornInputStream.java
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Original file line number Diff line number Diff line change
Expand Up @@ -467,7 +467,9 @@ private PartitionReader createReaderWithRetry(
lastException = e;
shuffleClient.excludeFailedFetchLocation(location.hostAndFetchPort(), e);
fetchChunkRetryCnt++;
if (location.hasPeer() && !readSkewPartitionWithoutMapRange) {
if (location.hasPeer()
&& !isExcluded(location.getPeer())
&& !readSkewPartitionWithoutMapRange) {
// fetchChunkRetryCnt % 2 == 0 means both replicas have been tried,
// so sleep before next try.
if (fetchChunkRetryCnt % 2 == 0) {
Expand All @@ -479,6 +481,7 @@ private PartitionReader createReaderWithRetry(
fetchChunkMaxRetry,
location,
e);
location = location.getPeer();
if (pbStreamHandler != null) {
try {
TransportClient client =
Expand All @@ -501,7 +504,6 @@ private PartitionReader createReaderWithRetry(
}
pbStreamHandler = null;
}
location = location.getPeer();
} else {
logger.warn(
"CreatePartitionReader failed {}/{} times for location {}, retry the same location",
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